About from CS manual

Counter-Strike is a modification (MOD) to Valve Software’s hit game Half-Life. It modifies the multiplayer aspects of Half-Life to provide the player with an experience that a trained counter-terrorist unit or terrorist unit might have. Players will join either a terrorist or a counter-terrorist force and play in one of the four types of scenarios. These are:

• Hostage Rescue, where the counter-terrorists must rescue hostages.

• Bomb / Defuse, where terrorists must plant a bomb in a critical area and counter-terrorists must defuse the bomb.

• Escape, where the terrorists must escape from the counter-terrorists.

• Assassination, Where the VIP must be escorted by the counter-terrorists to an escape point.

Current Version

The current version of Counter-Strike is v1.0... Since it's initial release, Counter-Strike has become the most popular mod! no joke! Though the new redone models are cool... it moves like skiing??? huh...???? >>> Expect new updates for this one!

If you don't have it yet, go to cs.net to get it.